Nozzle



NOV. 27, 1934. T w MURPHY 1,982,228

NOZZLE Filed Jan. 30, 1934 Y llllil WITNESSES" T gggpg; h I

homas ur BY b Patented Nov. 27, 1934 UNITED STATES' PATENT? OFFICE NOZZLE Application January 30, 1934, Serial No. 708,946

Claim.

This invention relates to nozzles and has for an object to provide a nozzle having new and improved features of manufacture and convenience of assembly.

I A further object of the invention is to provide a nozzle embodying within itself a strainer, with a member having tangentially arranged kerfs communicating with a central discharge orifice to produce a whirling spray discharged from such 0 orifice.

A further object of the invention is to provide a member having tangentially arranged kerfs fitting the interior of a tip which is provided with an axial orifice, with improved means for clamp- .6 ing the kerfed member within the tip to insure liquid excluding fit between said member and the tip.

A further object of the invention is to provide,

in combination with a hollow tipwith an axial l0 orifice, a sleeve proportioned to be inserted into the interior of said tip, with a terminal member carried by said sleeve, the sleeve being slitted longitudinally to provide for limited yielding to insure theaccurate fitting of the terminal mem- :6 her relative to the interior of the tip.

A further object of the invention is to provide, in combination with a hollow tip, with an axial orifice, a sleeve proportioned to be inserted into the interior of said tip with a terminal member 50 carried by said sleeve and adapted by said sleeve to be forced into positive fitting engagement with the interior of the tip, there being tangential kerfs formed in one of the mating parts of the terminal member and tip.

The invention, therefore, comprises in combination with a housing, a hollow tip associated with the housing internally threaded or otherwise provided with engaging means for engaging a sleeve which is inserted into said tip, forming an annular chamber thereabout, said sleeve being longitudinally slitted from the inner end toward the end which is clamped relative to the tip, with a terminal member inserted into the sleeve and provided with a shoulder resting upon the end of the sleeve, the terminal member being provided with a section properly machined to fit the interior'of the tip member, the said supporting sleeve, by reason of its slitting, providing ample yielding to compensate for otherwise non-centering to insure the perfect fit of the terminal member against the interior of said tip member, said terminal member or the mating part of the tip being provided with tangentially arranged kerfs formingcommunication by-passing said fitting sections.

The drawing illustrates several embodiments of the invention and the views therein are as follows:

Figure 1 is a view of the nozzle seen largely in diametrical section, certain portions, however,

' being shown in elevation broken,

Figure 2 is a view or the nozzle in end elevation, a as indicated by arrow 2 at Figure 1,

Figure 3 isa view in side elevation of one type r of terminal member,

Figure 4 is a view in end elevation of the terminal member shown at Figure 3,

Figure 5 is a view partly in section and partly in elevation of a modified type of nozzle,

Figure 6 is a similar view of a still further modification,

Figure! is a sectional view shown from the lower ends of either Figures 5 or 6,

Figure 8 is a view in side elevation of the tip,

Figure 9 is a view in side elevation of the strainer member, and I Figure 10 is a view in side elevation of the sleeve member.

Like characters of reference indicate corresponding parts throughout the several views.

The nozzle which forms the subject-matter of this application is capable of substantially universal use, but is designed more particularly and will, as at present seen, find its greatest utility in the field of oil burners. This being its apparent greatest utility, will be taken as a basis for the explanation of the invention it being understood, however, that the invention is in no way limited to this use or utility.

A housing 10 of substantially the usual and ordinary type is provided with a thread 11 or such type as to fit the fittings upon which the device is to be employed. It is also provided with a threaded part 12 into which the threaded part 13 of the tip 14 is inserted.

This tip 14 is hollow and is provided with an axial bore 15 which in the embodiments shown at Figures 1 and 6, merges from a substantially conical bore 16.

This tip 14 is also internally screw-threaded at 17 to receive a sleeve 18 which has a threaded enlargement 19, a kerf 20 being provided for inserting and withdrawing the sleeve. This sleeve 18 is slitted at 21 from the inner end of the sleeve as inserted, as shown at Figure 1, toward but stopping short of the opposite end.

The number of slits formed in this sleeve is no limitation upon the invention, but it has been found that four of these slits serve the purpose admirably, but it is to be understood as no limitation upon a greateror lesser number.

A terminal member 22, as shown at Figures 1, 3 and 4, is provided to make an engagement within and be clamped by the sleeve 18' and is also provided with a shoulder 23 fitting upon the end of the sleeve, all so proportioned that the terminal member will be withdrawn with the sleeve when the sleeve is unscrewed. While it is intended that the shoulder contact shallmake a relatively liquid-tight joint, such Joint is not essential tothe operation of the device.

The said terminal member 22 has an end formed as cones of two inclinations, one being shown at 24 and one at 25. The latter conical formation is intended to make accurate and liquid-tight contact with the conical bore 16 of the tip.

Extending along this conical portion 25 are a plurality of tangentially arranged kerfs 26 which form the only outlet from the annular chamber between the sleeve 18 and the interior walls of the tip 14, and to form communication between such chamber and the swirl chamber communicating with the discharge orifice 15.

As thus constructed the nozzle is a. complete operative device, but for many purposes, especially where fuel oil is being employed, a strainer is found desirable. The device lends itself to the accompaniment of a strainer 27 by providing the strainer with a knurled hub 28 and a threaded shank 29 which fits an internally threaded section 30 of the sleeve 18.

The device is assembled to the combination shown at Figure 1 by first inserting the terminal member 22 into the end of the sleeve 18 and then inserting the sleeve into the interior of the tip 14. By applying an implement to the kerf 20 of the sleeve 18, pressure may be exerted to clamp the terminal member into positive engagement with the interior walls of the tip and by reason of the slitting of the sleeve 18, a lateral yielding is provided which insures the proper fitting of the conical part 25 of the terminal member with the inner walls of the conical part 16 of the tip. The strainer is now applied to the lower end of the sleeve by the association of the threaded parts 29 and 30 actuated manually, or by the use of an implement upon the knurled part 28 of the hub.

The tip thus assembled is then inserted into the housing 10 and the tip is. complete, ready for action, by attachment to a conduit through the use of the threads 11.

In the type shown at Figure 5 the terminal member 22' is shaped somewhat differently from the terminal member 22, a single conical surface only being provided, and in this case, the kerfs 26 are formed within the interior of the tip.

In the type shown at Figure 6 the terminal member 22" is formed with a fiat surface and fits against a fiat surface in the tip, and kerfs 26 are formed in the interior of the tip chamber.

At Figure '7 the-position of these kerfs 26 or 26" is illustrated, forming communication, in both instances, between the annular chamber surrounding the sleeve 18 and the swirl chamber communicating with the discharge orifice 15.

It will be obvious that liquid entering from the conduit must pass through the strainer 2'1 into the interior offlihe sleeve 18, but by reason of the sleeve being completely stopped by the terminal member 22, 22' or 22", the liquid must pass out through the slits 21 into the annular chamber within the tip and from that chamber pass through the tangential kerfs 26. 26' or 26",im-

parting to the liquid a whirling action within the swirl chamber, and owing to the accurate centering of the terminal member relative to the discharge orifice 15, serves to spread the liquid in a widely divergent uniform spray.

Of course, the nozzle herein described may be otherwise modified and changed in various ways without departing from the invention herein set forth and hereinafter claimed.

I claim:-

-1. A nozzle comprising a hollow tip having a conical termination communicating with a discharge orifice, a terminal member contoured to fit the conical part, and means carrying the terminal member adapted to clamp the member into positive fitting engagement, said clamping means adapted to yield laterally to insure proper seating of the terminal member.

2. A nozzle comprising a hollow tip having a conical termination communicating with a discharge orifice, a terminal member contoured to fit the conical part, a sleeve closely embracing and adapted to clamp the terminal member into positive fitting engagement, said sleeve being adapted to yield laterally to insure fitting engagement.

3. A nozzle comprising a hollow tip ending in a conical part communicating with an axial discharge orifice, a terminal member having a conically contoured part adapted to fit the conical part of the bore, a sleeve embracing said terminal 105 member, said sleeve being longitudinally slitted to provide lateral yielding of the sleeve to insure fitting and positive clamping of the terminal member.

4. A nozzle comprising a hollow tip having a conical termination communicating-with a discharge orifice, a' terminal member having a conically inclined part contoured to fit the conical part of the bore and provided with an outstanding annular shoulder, a sleeve embracing said terminal part with its end bearing beneath said shoulder, said sleeve being longitudinally slitted to provide for lateral yielding of the terminal member, and means for clamping the parts within the tip.

5. A nozzle comprising a hollow tip having a conical termination communicating with an axial discharge orifice, a terminal member having a part conically contoured to fit the conical part and provided with an outstanding annular shoulder, a sleeve beneath the shoulder and supporting the terminal member, said sleeve being longitudinally slitted a distance greater than the length of the terminal member, means for clamping the terminal member into fitting engagement, 180 and a strainer member communicating with the interior of the sleeve.

6. A nozzle comprising a hollow tip with a conical termination communicating with an axial discharge orifice, a terminal member having a conically contoured part adapted to fit the conical termination of the bore and with tangentially arranged kerfs in said conically contoured part, an annular shoulder outstanding from the terminal member providing a cylindrical part, a sleeve fitting and clamping said cylindrical part and bearing against said annular shoulder, said sleeve being slitted from the end supporting the terminal member a distance greater than the cylindrical part of the terminal member, means for positively clamping the terminal member into engagement with the conical part of the bore providing lateral yielding to insure said fit, a strainer member communicating with the interior of the sleeve forming thereby passages through said sleeve, and slits to the annular chamber and through said tangential kerfs to the discharge orifice.

'7. A nozzle comprising a tip having a .bore terminating in a conical part communicating with an axially positioned orifice, a terminal member conically contoured to fit the conical part of the bore and provided with tangentially arranged kerfs through said conically contoured part, an annular shoulder outstanding from the terminal member providing a cylindrical part, a sleeve for coaction with the bore of the nozzle properly proportioned to fit the cylindrical part of the terminal member, said sleeve being smaller than the bore and forming an annular chamber thereabout, said sleeve being also slitted from the end supporting the terminal member a distance greater than the cylindrical part of said terminal member and providing for lateral yielding to properly center the terminal member when forced into positive engagement, and a strainer member engaging the sleeve and communicating with the interior thereof forming thereby passages through the slits into the annular chamber and from said annular chamber through said tangential kerfs to the discharge 8. A nozzle comprising a hollow tip having a discharge orifice, a terminal member, and laterally yielding means carrying the terminal member and tending to force the member into positive centering engagement with the hollow of the tip and the discharge orifice.

9. A nozzle comprising a hollow tip having an axial discharge orifice, a terminal member contoured to fit within the hollow of the tip into axial alignment with the orifice, and means carrying the terminal member and arranged, to clamp said terminal member into such fitting engagement, said clamping means constructed to yield laterally to insure such axial coordination.

10. A nozzle comprising'a hollow tip having a discharge orifice, a terminal member, and combined yielding means and locknut carrying said terminal member and supporting a strainer element and tending to force the terminal member into centering engagement with the hollow of the tip.

11. A nozzle comprising a hollow tip having axial discharge orifice, a terminal member contoured to fit within the hollow of the tip into axial alignment with the orifice, and yielding means carrying said terminal member and forming a strainer support tending to force said terminal member into centering engagement with the hollow of the tip, said clamping means constructed to yield laterally to insure axial coordination.

12. A spray nozzle comprising a hollow tip including a swirl chamber and an axially aligned discharge orifice, a terminal member contoured to fit the hollow of the tip, a laterally yielding member carrying said terminal member and tending to force the member to positive accurate fitting and centering relation to the swirl chamber and the orifice, said fitting parts being provided with kerfs tangential to the swirl chamber and forming the sole inlet thereto.

13. A nozzle comprising a hollow tip having an axial discharge orifice, an axial swirl chamber and kerfs arranged tangential to the swirl chamber, a terminal member contoured to fit within the hollow of the tip and to cover the swirl chamber and parts of the kerfs, and yielding clamping means carrying said terminal member and tending to force the member accurately and.

positively to such covering position, said yielding member being provided with passageways for liquid therethrough.

14. A spray nozzle comprising a hollow tip having an axial discharge orifice, an axially positioned swirl chamber with kerfs tangential to and connecting with said chamber, a terminal member contoured to cover the swirl chamber and the inner ends of the kerfs, a strainer carrying yielding member carrying said terminal member and tending to force the terminal positively to such covering position and. into-accurately centered position relative to the discharge orifice and swirl chamber.

15. A spray nozzle comprising a hollow tip having an axial discharge orifice, an axially positioned swirl chamber with kerfs tangential to and connecting with said chamber, a terminal member contoured to cover the swirl chamber and the inner ends of the kerfs, and a strainer support carrying said terminal member and including a yielding member tending to force the terminal member positively to such covering position and accurately centered relative to the discharge orifice and swirl chamber.

THOMAS W. MURPHY. 

